An infinite horizontal string is plucked. The vertical displacement of the string is the solution to the following initial value problem x E R, t > 0 u(x, 0) = $(x) ди (x, 0) = 0 with 1- |æ|/2, for |x| < 2 $(x) = for |x| > 2 (i) Using d'Alembert's solution, give an explicit solution to this initial value problem.
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